Roof Pitch Framing Square

The triangle shaped square was invented in 1925 by albert swanson to provide a quick accurate method for marking rafters.

Roof pitch framing square.

If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width. I go over a. More project and tips. So if the pitch of your roof is 7 12 place one stair gauge on the vertical part of the framing square the tongue at the 7 inches 18 cm mark and place one stair gauge on the horizontal part of the framing square the body at the 12 inches 30 cm mark.

See more ideas about framing construction roof framing roof design. Aug 20 2020 explore john barber s board framing square on pinterest. Square guides are available at most hardware and home improvement centers. A 6 inch rise per foot.

Framing square basics how to use one. Find the unit rise say inches per foot of the roof on the top line in the framing square rafter table e g. The standard two foot framing square also referred to as a carpenter s square and historically as a steel square is an l shaped tool that is used to mark angles for cuts used in building framing particularly roof rafters stair stringers and many other cuts or angles other than 90. Framing square guides are small inexpensive metal attachments to the framing square that are locked in position on the square s edges at the pitch and run dimensions to define the roof angle and make the repeated marking of the rafters much more efficient.

Finding the pitch of a roof is simple with a speed square. Directly below the 6 inch mark on the framing square read the required rafter length 13 42 per foot of run for a 6 inch rise 6 in 12 roof. Read this number along the inches scale at the top of the framing square.